<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

    <form name="punchout_form" method="post" action="https://openapi-sandbox.dl.alipaydev.com/gateway.do?charset=utf-8&method=alipay.trade.page.pay&sign=yrWyGqA12vhdLzKE1Nu5D7lGAeP5g28GDK51a3OWHSP8bewMqu3xIRLrlu0JytVadev1htoDThFgsFW586enRm05JtIQK8Jm6WKfdsnZMxSCv8UQ5xvAqyYG9guBLeS%2B7TSIdVx7BziFx4FfT%2BE99mYZb2%2B9YD2nYZ6pfyB92mPvRLyazWLOtW%2FW3dHMMMNiz8nLGEYIiE1SZHSqMrOxV%2FjohOcPWzDhVcoKvIYbX%2B6k5TyNd1UJnD%2BaP%2B0KFJXy6eo4DiPlujfmGMB5%2FS%2BcPQ9CTHe3X%2BPXMyra2sj%2F7sWdscWjtcsCo3pPVPViczJQh9xf82s4caMPBCcEhS4kdw%3D%3D&return_url=https%3A%2F%2Fbaidu.com&notify_url=http%3A%2F%2Fx86d4f48.natappfree.cc%2Fapi%2Fv1%2Falipay%2Falipay_notify_url&version=1.0&app_id=9021000151623493&sign_type=RSA2&timestamp=2025-09-28+17%3A42%3A21&alipay_sdk=alipay-sdk-java-4.38.157.ALL&format=json">
        <input type="hidden" name="biz_content" value="{&quot;out_trade_no&quot;:&quot;15214856897329&quot;,&quot;total_amount&quot;:1.68,&quot;subject&quot;:&quot;测试商品&quot;,&quot;product_code&quot;:&quot;FAST_INSTANT_TRADE_PAY&quot;}">
        <input type="submit" value="立即支付" style="display:none" >
    </form>
    <script>document.forms[0].submit();</script>

</head>
<body>

</body>
</html>